.chat-window {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  max-width: 848px;
  height: 100%;
  position: relative;
}

.chat-header {
  max-width: 848px;
  height: 40px;
  line-height: 40px;
  text-align: center;
}

.chat-window-chat {
  width: 100%;
  flex: 1;
}

.chat-window-input {
  width: 100%;
  padding: 20px 0;
}